US10992055B2 - Component carrier with integrated antenna arrangement, electronic apparatus, radio communication method - Google Patents

Component carrier with integrated antenna arrangement, electronic apparatus, radio communication method Download PDF

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Publication number
US10992055B2
US10992055B2 US16/097,312 US201716097312A US10992055B2 US 10992055 B2 US10992055 B2 US 10992055B2 US 201716097312 A US201716097312 A US 201716097312A US 10992055 B2 US10992055 B2 US 10992055B2
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antenna element
base structure
component carrier
antenna
electronic component
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US20200067198A1 (en
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Urs Hunziker
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AT&S Austria Technologie und Systemtechnik AG
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AT&S Austria Technologie und Systemtechnik AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/064—Two dimensional planar arrays using horn or slot aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814—Conductive parts
    • H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
    • H01L21/4857—Multilayer substrates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
    • H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
    • H01L23/64—Impedance arrangements
    • H01L23/66—High-frequency adaptations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
    • H01L24/19—Manufacturing methods of high density interconnect preforms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
    • H01L24/20—Structure, shape, material or disposition of high density interconnect preforms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays
    • H01Q21/0093—Monolithic arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2223/00—Details relating to semiconductor or other solid state devices covered by the group H01L23/00
    • H01L2223/58—Structural electrical arrangements for semiconductor devices not otherwise provided for
    • H01L2223/64—Impedance arrangements
    • H01L2223/66—High-frequency adaptations
    • H01L2223/6661—High-frequency adaptations for passive devices
    • H01L2223/6677—High-frequency adaptations for passive devices for antenna, e.g. antenna included within housing of semiconductor device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/02—Bonding areas; Manufacturing methods related thereto
    • H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L2224/04105—Bonding areas formed on an encapsulation of the semiconductor or solid-state body, e.g. bonding areas on chip-scale packages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
    • H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
    • H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
    • H01L2224/321—Disposition
    • H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/32225—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
    • H01L2224/732—Location after the connecting process
    • H01L2224/73251—Location after the connecting process on different surfaces
    • H01L2224/73267—Layer and HDI connectors

Definitions

  • the present invention generally relates to the field of component carriers such as printed circuit boards which are provided with integrated antenna structures in order to form at least a part of a radio communication device. Specifically, the present invention relates to a component carrier with an antenna arrangement comprising two antenna elements. Further, the present invention relates to an electronic apparatus comprising such a component carrier and to a manufacturing method for such a component carrier.
  • radio communication devices e.g. notebook computers, tablet computers, smart phones, etc.
  • Multi-layer component carriers respectively Multi-layer printed circuit boards (PCBs).
  • PCBs Multi-layer printed circuit boards
  • conductor traces being assigned to different conductor layers are connected with plated-through holes called vias.
  • US 2014/0145883 A1 discloses a printed circuit board (PCB) package structure including a planar core structure made from FR4 material, an antenna structure disposed on one side of the planar core structure, and an interface structure disposed on an opposite side of the planar core structure.
  • the antenna structure and interface structure are each formed of a plurality of laminated layers, each laminated layer having a patterned conductive layer formed on an insulating layer.
  • the antenna structure includes a planar antenna formed on one or more patterned conductive layers of the laminated layers.
  • the interface structure includes a power plane, a ground plane, signal lines, and contact pads formed on one or more patterned conductive layers of the laminated layers of the interface structure.
  • the package structure further includes an antenna feed line structure formed in, and routed through, the interface structure and the planar core structure, and connected to the planar antenna.
  • PCB integrated phase array antenna structures represent a big contribution for a high integration density of radio communication devices allowing for a spatially directed radio communication, there may still be a need for a technique allowing for further increasing the integration density of such radio communication devices.
  • a beamforming can be achieved by combining different signals being associated with different antenna elements in a phased array comprising at least the two antenna elements in such a way that signals at particular angles experience constructive interference while others experience destructive interference. Since antenna elements can be used both for transmitting and receiving electromagnetic signals beamforming can be applied both for transmitting radio communication end devices and for receiving radio communication end devices.
  • the described openings are a free or unfilled (e.g. filled with air) openings. It is only necessary that during the manufacture of the described component carrier the respective opening is free or unfilled at least at a certain processing stage. In the final state of the electronic assembly the opening may be filled e.g. with a protective or any other functional material.
  • At least one of the conductor traces may be realized by an appropriately patterned metallic layer of the base structure. This may provide the advantage that the interconnecting circuitry of the described component carrier may be realized by means of a well-established procedure which is known for instance for manufacturing printed circuit boards.
  • radio functionality of the described component carrier can be realized with an electronic assembly which can be built up within compact dimensions.
  • This may be in particular of advantage for high frequency radio communication applications.
  • radio frequencies up to the Terahertz (10 +12 Hz) regime are possible.
  • a further advantage of a short conductor trace extending between the embedded active electronic component and the respective antenna element is a small ohmic resistance which yields small losses of the electric signals travelling between the embedded active electronic component and the respective antenna element.
  • a short conductor trace will typically exhibit a small capacitance and a small inductance.
  • the size respectively the length of the conductor traces may depend on the size of the radio communication device.
  • the first conductor trace and/or the second conductor trace consists of a number of N straight conductor trace portions, wherein the number N is smaller than 5, in particular smaller than 4, further in particular smaller than 3, and furthermore in particular smaller than 2.
  • the number of straight conductor trace portions is small. This may mean that in the spatial design of the conductor trace(s) there are only few or no intentional corners or curved portions. Since any non-straight section of a conductor trace results in a comparatively strong electromagnetic emission, the described embodiment with only a few curvatures may further increase the above mentioned electromagnetic compatibility.
  • the predetermined wavelength may be for instance a center wavelength corresponding to a certain center frequency.
  • a specified center frequency which is often also called a carrier frequency.
  • the signal conditioning may include for instance a proper selection of the number or the size of guard intervals which may be necessary in a radio communication because they allow that reflections of electromagnetic waves travelling between the transmitting radio communication (end) device and the receiving radio communication (end) device to decay before a subsequent electromagnetic wave transmitted by the transmitting radio communication (end) device is received by the receiving radio communication (end) device.
  • one antenna element of the antenna elements is formed within an opening which itself is formed at an upper surface of the base structure and within the base structure.
  • each antenna element is formed within one opening. This means that the number of openings is the same as the number of antenna elements.
  • the antenna elements may be realized by an appropriate metallization formed within the respective opening and being electrically connected with the embedded active electronic component.
  • the antenna elements may be recessed or deepened. This may provide the advantage that the surface of the base structure will be free of any (metallic) structures representing at least a part of the antenna elements. As a consequence, the surface of the component carrier can be treated or processed at least to some extend without taking care of the antenna elements.
  • the opening is at least partially a slot having a first sidewall portion and a second sidewall portion being opposite and parallel to the first sidewall portion.
  • Realizing the opening in the form of a slot or slit may provide the advantage that the opening within the base structure can be formed in an easy manner for instance by a simple milling procedure. Further, the shape and the spatial dimension of the opening can be selected easily depending on the respective application. These benefits can be realized both in connection with a passage opening as well as in connection with a blind opening as will be specified below.
  • an upper edge of the opening describes a closed line at the upper surface of the base structure. This may mean that the opening is not a recess at an lateral edge or at a lateral region of the base structure.
  • the described opening is rather a hole, a hollow space, a chamber, and/or a cavity which is formed within the base structure and which within any plane being parallel to the upper surface or a lower surface of the base structure is surrounded by the base structure.
  • the upper surface and a lower surface of the base structure may be surfaces which are located within a plane being parallel to a layer structure of the base structure.
  • the upper surface and a lower surface may be planar surfaces.
  • the one antenna element is formed at least partially at a side wall of the opening.
  • This may provide the advantage that a large area, which defines the opening, can be used for forming one of the antenna elements. This holds in particular if the opening has a comparatively small dimension along any direction being parallel to the (upper) surface of the base structure respectively the component carrier.
  • the antenna element can, depending on the specific application, realized with an appropriate structural design.
  • the opening is a passage opening which extends from the upper surface to an opposing lower surface of the base structure. This may mean that the opening of the full passage completely extends through the base structure from the upper surface until the lower surface.
  • a passage opening may provide the advantage that it can be easily formed within the base structure. This can be realized for instance by means of a known drilling or milling procedure. Alternatively, the passage opening can also be formed during a formation in layers of the base structure, wherein the involved layers comprise appropriately formed and located cut outs. In particular in case of a cylindrical form of the passage opening the passage opening may be a so called through hole.
  • the antenna elements can be placed anywhere on or at the base structure, including its top side, bottom side, and/or edge. With an optimal placement of the antenna elements it may be possible to compensate at least partially negative effects (e.g. an unwanted distortion of the electromagnetic fields), that may be induced by an outer housing of an electronic device (e.g. a mobile phone) and/or by the surrounding of the electronic device and/or by other nearby electronic components which may be mounted at or embedded within the component carrier.
  • at least partially negative effects e.g. an unwanted distortion of the electromagnetic fields
  • the one antenna element is formed at least partially at a bottom wall of the blind opening. This may provide the advantage that a large area which delimits the opening within the base structure from the physical structure of the base structure can be used for forming the respective antenna element. This gives an engineer, who is designing the component carrier for a specific application, a high flexibility with regard to possible designs of the antenna elements.
  • a “flexi print material” is a material which is typically used for building up flexible printed circuit boards by means of flexible plastic substrates, such as polyimide, Polyether ether ketone (PEEK) or transparent conductive polyester film.
  • a “removable filling material” is a material which during production of a component carrier is used as a temporary placeholder when forming the component carrier. At a later production step the placeholder is removed such that a cavity or any type of free space is generated into which another material, e.g. an electronic component, is filled or embedded.
  • the mentioned antenna element has different shapes and/or dimensions within different metallic layers of the base structure.
  • the sensitivity of the antenna arrangement for receiving electromagnetic radiation may be not spatially uniform and can be adjusted properly depending on the specific application of the described electronic assembly. Therefore, the above elucidated beam forming respectively directional sensitivity can be supported by a proper shape of the antenna elements. Since the shape of the antenna elements relies on the patterned structure of the first metallic layer and the second metallic layer, appropriately formed antenna elements can be realized very easy together with a production of the layered base structure.
  • the antenna elements can also extend over more than two metallic layers. This may allow for realizing the antenna elements with a plurality of antenna element portions each being assigned to a different metallic layer and preferably each having a different spatial spread.
  • the base structure (and also the entire component carrier) comprises an alternating sequence of metal layers and dielectric or insulating layers. Such a structure may also be denominated a Multi-layer board. Though holes or blind holes can be used for interconnecting different metal layers in order to increase the integration density in particular of signal traces formed on and/or within the base structure.
  • the term “sandwiched” may refer to any layered structure wherein one (sandwiched) layer is located in between two (sandwiching) layers. Thereby, the sandwiched layer may be clamped with force or pressure by the sandwiching layer. However, also a simple middle or center location of the sandwiched layer is possible, where there is no force or pressure acting from the sandwiching layers onto the sandwiched layer.
  • substrate may particularly denote a small bare component carrier having substantially the same or a slightly larger size as a typical electronic component to be mounted thereon.
  • Suitable elastic or flexible materials may be polyimide, PEEK, and polyester. Although polyimide is a preferred material, the other mentioned materials or other flexible materials may be used as well.
  • the provided electronic apparatus is based on the idea that using the above described component carrier in particular for radio communication allows the electronic apparatus (a) to be realized within a compact design and (b) to be provided with a directional radio transmitting and radio receiving characteristic or pattern which may yield a high efficiency with regard to the power needed for radio communication.
  • the transmit power can be reduced and the receive sensitivity can be increased.
  • the directional transmit and/or receive pattern can be adapted to the actual environmental surroundings. Further, a proper directional transmit characteristic may be exploited towards a reduced electromagnetic impact on persons being located near the described radio communication device.
  • the communication (end) device might be any type of radio equipment which is capable of connecting with an arbitrary other radio communication device or a radio communication access point of a network such as a base station or a relay node of a cellular radio network.
  • the radio equipment may be a RFID communication device such as an active RFID tag, a Near Field Communication (NFC) device or any other movable radio communication apparatus such as a cellular mobile phone, a Personal Digital Assistant (PDA), and/or a notebook or tablet computer.
  • NFC Near Field Communication
  • PDA Personal Digital Assistant
  • FIGS. 1 a and 1 b show a component carrier with an antenna arrangement comprising two cone shaped antenna elements formed within a laminated base structure.
  • FIG. 3 shows a component carrier with an antenna arrangement comprising four cone shaped antenna elements and with two embedded electronic components being operatively connected with respectively two antenna elements.
  • FIGS. 6 a and 6 b show a component carrier with two metallized passage openings extending through a laminated structure, wherein each metallized passage opening represents one antenna element.
  • FIG. 8 shows an electronic apparatus accommodating, within a housing, a component carrier in accordance with an embodiment of the invention.
  • FIG. 9 shows an electronic apparatus with a housing being formed partially by a component carrier in accordance with an embodiment of the invention.
  • spatially relative terms such as “front” and “back”, “above” and “below”, “left” and “right”, et cetera are used to describe an element's relationship to another element(s) as illustrated in the figures.
  • the spatially relative terms may apply to orientations in use which differ from the orientation depicted in the figures.
  • All such spatially relative terms refer to the orientation shown in the figures only for ease of description and are not necessarily limiting as an apparatus according to an embodiment of the invention can assume orientations different than those illustrated in the figures when in use.
  • FIGS. 1 a and 1 b show a component carrier 100 in accordance with an embodiment of the invention.
  • the component carrier 100 comprises a core 110 , which represents a backbone providing a certain mechanical stability for the component carrier 100 .
  • a base structure 120 comprising an alternating sequence of dielectric layers 122 and electrically conductive respectively metallic layers 124 .
  • the base structure 120 is also referred to as a laminate structure.
  • an embedded electronic component 130 Within the base structure 120 and adjacent the core 110 there is provided an embedded electronic component 130 .
  • the component is completely surrounded by the base structure 120 , i.e. there is no mechanical contact between the embedded electronic component 130 and the core 110 .
  • the embedded electronic component is located within the core.
  • the component carrier 100 further comprises an antenna arrangement 140 , which is formed within an upper portion of the base structure 120 .
  • the antenna structure 140 comprises two antenna elements, a first antenna element 142 and a second antenna element 146 .
  • the two antenna elements 142 and 146 each comprise a right circular truncated cone shape.
  • the antenna elements 142 and 146 are formed by means of a metallization of the inner side surface and the bottom surface.
  • FIG. 1 b shows in a top view of the component carrier the respective upper edges 142 a and 146 a as well as the respective bottom areas 142 b and 146 b.
  • the bottom areas 142 b and 146 b may include a not depicted Rx/Tx element, e.g. a dipole Rx/Tx element, the structure of which cannot be seen in FIGS. 1 a and 1 b and also in the further FIGS. 2 and 3 elucidated below.
  • the embedded electronic component 130 comprises several contact terminals (not depicted explicitly).
  • One contact terminal is connected to the first antenna element 142 via a first conductor trace 152 .
  • the first conductor trace 152 comprises two straight conductor trace portions.
  • a first straight conductor trace portion is realized by means of a via 152 a (extending in the vertical direction).
  • the second straight conductor trace portion is realized by means of a portion 152 b of a patterned metallic layer 124 .
  • the second conductor trace 156 comprises two straight conductor trace portions which are realized by means a via 156 a and another portion 162 b of the patterned metallic layer 124 .
  • the embedded electronic component 130 is an active electronic component which is capable of providing a first transmit signal to the first antenna element 142 and a second transmit signal to the second antenna element 146 .
  • the active electronic component 130 is capable of processing a first receive signal received from the first antenna element 142 and a second receive signal received from the second antenna element 146 .
  • the antenna arrangement 140 is a so called Phase Antenna Array (PAA) which is formed respectively embedded within the base structure 120 .
  • PAA Phase Antenna Array
  • the PAA can also comprise further antenna elements.
  • a beamforming can be achieved. Since the antenna elements 142 , 146 can be used both for transmitting and receiving electromagnetic signals beamforming can be applied both for a transmitting radio communication end device and for a receiving radio communication end device.
  • FIG. 2 shows a component carrier 200 according to a further embodiment of the invention.
  • the component carrier 200 basically corresponds to the component carrier 100 shown in FIG. 1 a .
  • the only (depicted) difference is that there is provided a protective structure at the upper surface of the base structure 120 respectively at the antenna arrangement 140 .
  • This protective structure comprises a protective coating 260 and a filling material 262 which has been inserted into the interior of the truncated cone shaped antenna elements 142 , 146 .
  • the material being used for the protective structure is a so called solder resist material which is widely used for manufacturing component carriers.
  • FIG. 3 shows in accordance with a further embodiment of the invention a component carrier 300 with an antenna arrangement 340 comprising four truncated cone shaped antenna elements, a first truncated cone shaped antenna element 342 , a further first truncated cone shaped antenna element 343 , a second truncated cone shaped antenna element 346 , and a further second truncated cone shaped antenna element 347 .
  • two components 330 a and 330 b are embedded within the laminated base structure 120 of the component carrier 300 .
  • the two embedded electronic components 330 a and 330 b are operatively connected with respectively two antenna elements 342 , 343 respectively 346 , 347 .
  • the first antenna element 342 is connected with the component 330 a via a first conductor trace 352 .
  • the further first antenna element 343 is connected with the component 330 a via a further first conductor trace 354 .
  • the second antenna element 346 is connected with the component 330 b via a second conductor trace 356 and the further second antenna element 347 is connected with the component 330 b via a further second conductor trace 358 .
  • the two embedded electronic components 330 a and 330 b are communicatively connected with each other at least by means of a non-depicted data connection embedded within the base structure 120 . This allows for a cooperative operation of the two components 330 a and 330 b in order to operate the entire antenna arrangement 340 in a proper manner such that the benefits of a PAA can be exploited.
  • FIGS. 4 a and 4 b show a component carrier 400 according to a further embodiment of the invention.
  • the component carrier 400 basically corresponds to the component carrier 100 shown in FIG. 1 a .
  • the only (depicted) two differences are (a) that the number of the layers of the base structure 420 is smaller than the number of layers of the base structure 120 and (b) that instead of (truncated) cone shaped antenna elements the antenna arrangement 440 comprises two hollow conductors or waveguide 442 and 446 each having an opening 443 respectively 447 representing respectively one of the two antenna elements.
  • the two hollow conductors 442 and 446 extend along a y-direction.
  • each one of the openings within the respective hollow conductor 442 , 446 is realized by means of a comparatively short slot 443 , 447 extending along the y-direction.
  • FIGS. 5 a and 5 b show a component carrier 500 according to a further embodiment of the invention.
  • the component carrier 500 comprises an antenna arrangement 540 , wherein the first antenna element and the second antenna element are realized by means of a first slot 542 and a second slot 546 , respectively.
  • the two slots 542 and 546 have the form of a blind opening.
  • each one of the two slots 542 , 546 has a slightly elongated shape oriented along the y-direction.
  • FIGS. 6 a and 6 b show a component carrier 600 according to a further embodiment of the invention.
  • the component carrier 600 comprises a laminated base structure 620 which is formed by an alternating sequence of dielectric layers 622 and metallic layers 624 . It is mentioned that in the described embodiment there is no core layer. However, it is pointed out that at least one of the dielectric layers 624 may be different from the others and may provide for a mechanical stability such that this layer can be denominated a core layer.
  • the passage openings 642 and 646 are formed within the base structure 620 .
  • the passage openings 642 , 646 have the shape of a rectangle (see FIG. 6 b ).
  • the passage openings 642 and 646 are realized by respectively one slightly elongated slot extending along the z-direction through the entire base structure 620 .
  • the passage openings represent a first antenna element 642 respectively a second antenna element 646 both forming an antenna arrangement 640 .
  • the sidewalls of the passage openings 642 , 646 are provided with an electrically conductive respectively metallic coating 645 .
  • This coating 645 being located within the first passage opening 642 is connected via a first conductor trace 652 with an embedded electronic component 630 .
  • the coating 645 being located within the second passage opening 646 is connected via a first conductor trace 652 with the embedded electronic component 630 .
  • the embedded electronic component 630 comprises (a) at its upper surface a non-depicted first contact terminal being connected with the first conductor trace 652 and (b) at its bottom surface and non-depicted second contact terminal being connected with the second conductor trace 656 .
  • contact terminals of the embedded electronic component are possible when providing accordingly formed conductor traces for connecting the electronic component with the antenna elements 642 and 646 .
  • FIG. 7 shows a component carrier 700 which differs from the component carrier 400 shown in FIGS. 4 a and 4 b in that the antenna elements are formed by a metallized recesses having the shape of a step horn.
  • an antenna arrangement 740 formed within an upper portion of the base structure 420 comprises a first step horn 742 representing a first antenna element and a second step horn 746 representing a second antenna element.
  • FIG. 8 shows in a schematic illustration an electronic apparatus 870 .
  • the electronic apparatus 870 comprises a housing 872 .
  • the electronic apparatus 870 further comprises a component carrier in accordance with an embodiment of the invention, for instance the component carrier 100 .
  • the component carrier 100 is accommodated within the housing 872 .
  • the electronic apparatus 870 described here is a radio communication (end) device which can be used for a radio communication within a radio communication network.
  • the component carrier 100 comprises all features respectively elements, which are necessary for performing the above mentioned beamforming.
  • FIG. 9 shows again in a very schematic illustration an electronic apparatus 970 according to a further embodiment of the invention.
  • the electronic apparatus 970 comprises a housing 972 .
  • the component carrier 100 forms an (upper) part of the housing 972 .
  • the electronic apparatus 970 is a radio communication (end) device.
  • the described electronic apparatus 970 may further provide the advantage that the (non-depicted) antenna arrangement is realized at an outer side of the housing 972 . Therefore, there is no attenuation of electromagnetic radiation caused by the housing 972 .

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US20200067198A1 (en) 2020-02-27
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